Home / 8,420,137.22-12,630,121.62-2,662,871.82

Finding the Fourth Proportional to 8,420,137.22, 12,630,121.62 and 2,662,871.82

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Solution

The fourth proportional to 8,420,137.22, 12,630,121.62 and 2,662,871.82 is: 3,994,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,137.22 : 12,630,121.62 = 2,662,871.82 : x
  2. Step 2: Convert to fraction form
    8,420,137.22/12,630,121.62 = 2,662,871.82/x
  3. Step 3: Cross multiply
    8,420,137.22x = 12,630,121.62 × 2,662,871.82
  4. Step 4: Simplify right side
    8,420,137.22x = 33,632,394,945,070.74
  5. Step 5: Solve for x
    x = 33,632,394,945,070.74/8,420,137.22
  6. Step 6: Final answer
    x = 3,994,281.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.